Term
| network interface card(NIC) |
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Definition
| each computer on the network contains this network interface device. |
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Term
| Network operating system (NOS) |
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Definition
| routes and manages communications on the network and coordinates network resources. |
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Definition
| connect network components, sending a packet of data to all other connected devices |
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Definition
| filters and forwards data to a specified destination on the network |
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Term
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Definition
| is a communication processor used to route packets through different networks, ensuring that the data sent gets to the correct address |
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Term
| Transmission Control Protocol/Internet Protocol (TCP/IP) |
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Definition
| single common, worldwide standard.Transmits data |
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Term
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Definition
| converts digital signals into analog signals that can be sent over (or received from) telephone lines, cable lines, or wireless media tht uses analog signals |
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Term
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Definition
| connects personal computers and other digital devices withing a half-mile or 500 meter radius |
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Term
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Definition
| can exhange data by direct access and can share peripheral devices without going through a seperate server |
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Term
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Definition
| the way their components are connected together |
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Term
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Definition
| all devices on the network connect to a single hub |
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Term
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Definition
| one station transmits signals, which travel in both directions along a single transmission segment |
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Term
| Wide area networks (WANs) |
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Definition
| span broad geographical distances-entire regions, states, continents, or the entire globe. Most univeral and powerful WAN is the internet |
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Term
| Metropolitan- area network (MAN) |
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Definition
| Is a network that spans a metropolitan area, usually a city and its major suburbs. |
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Term
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Definition
| consists of strands of copper wire twisted in pairs and is an older type of transmission medium. |
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Term
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Definition
| consists of thickly insulated copper wire, which can transmit a larger volume of data than a twisted wire |
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Term
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Definition
| consists of bound strands of clear glass fiber, each the thickness of a human hair. Data is transformed into pulses of light |
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Term
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Definition
| transmit high- frequency radio signals through the atmosphere and are widely used for high-volume, long distance, point- to point communication |
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Term
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Definition
| measurement of the number of cycles per second that can be sent through that medium |
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Term
| Internet Service Provider(ISP) |
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Definition
| is a commercial organization with a permanent connection to the Internet that sells temporary connections to retail subscribers. |
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Term
| Digital subscriber line (DSL) |
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Definition
| operate over existing telephone lines to carry voice, data, and video at transmission rates ranging from 385 kbps all the way to 9 Mbps |
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Term
| Cable Internet connections |
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Definition
| use digital cable coaxial lines to deliver high-speed Internet access to homes and businesses.they can preform high speed up to 10bpms |
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Term
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Definition
| offer guaranteed delivery at 1.54 Mbps |
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Term
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Definition
| convers IP addresses to domain names. |
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Term
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Definition
| are consortia representing 200 universaties, private businesses, and government agencies in the United States that are working on a new, robust, high-bandwidth version of the Internet |
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Term
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Definition
| integrates disparate channels for voice communications, data communications, instant messaging, e-mail, and elctronic conferencing into a single experience where users can seamlessly switch back and forth between different communication modes. |
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Term
| A virtual private network (VPN) |
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Definition
| is a secure encrypted, private network that has been configured within a public network to take advantage of the economies of scale and management facilities of large networks, such as the internet |
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Term
| Hypertext Transfer Protocol(HTTP) |
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Definition
| is the communications standard used to transfer pages on the WEB |
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Term
| Uniform resource locator(URL) |
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Definition
| directory path and document name. tells the browser software exactly where to look for the information |
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Term
| Search Engine Optimization (SEO) |
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Definition
| is the process of improving the quality and volume of web traffic to a website employing a series of techniques that help a website achieve a higher ranking |
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Term
| intelligent Agent Shopping Bots |
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Definition
| Describes the capabilities of software agents with built-in intelligence that can gather or filter information and perform the other tasks to assist users. |
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Term
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Definition
| use intelligent agent software for searching the Internet for shopping information. |
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Term
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Definition
| interactivity, real-time user control, social participation(sharing), and user- generated content. |
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Term
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Definition
| syndicates Web site content so that it can be used in another seting. |
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Term
| Radio frequency identification(RFID) |
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Definition
| systems provide a powerful technology for tracking the movement of goods throughout the supply chain. |
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Term
| Wireless Sensor Networks (WSN) |
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Definition
| are networks of interconnected wireless devices that are embedded into the physical environment to provide measurements of many points over large spaces. |
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